What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
B112A:12IG2 relay circuit malfunctionManufacturer communications
2Original wording in English
MAZDA
Reported code forms B112A:12
Some vehicles may experience an engine no start/no crank with either of the following DTC's stored: P0615:12 - Starter relay circuit malfunction B112A:12 - IG2 relay circuit malfunction This may be caused by water…
MAZDA
Reported code forms B112A:12
Some vehicles may experience an engine no start/no crank with either of the following DTC's stored: P0615:12 - Starter relay circuit malfunction B112A:12 - IG2 relay circuit malfunction. This may be caused by water…
Check vehicle applicability
9A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.